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Actually, thermodynamics and the conservation of energy is absolutely a factor - the questions you're bringing up have to do with the way we measure that energy
by nkozyra 12y ago
Actually, thermodynamics and the conservation of energy is absolutely a factor - the questions you're bringing up have to do with the way we measure that energy usage and potential, not with the fact that energy is either used (stored) or expelled.
The efficacy of metabolism is in my opinion very much the big question mark here, and why I think relying on one-size-fits-all concepts like "a carbohydrate translates to 4 kilocalories" is simplistic and in all likelihood flawed.
- iopq 12y agoNo, actually carbohydrates are extremely easily digested and used as energy directly by your muscles and other tissues. Fats are also easily digested and used as energy primarily when you sleep. It's protein that's hard to quantify (how much is converted to glucose? how much does it cost to generate 1 gram of tissue? how many calories does it take to digest?)
- nkozyra 12y agoI'm confused, where did I say carbohydrates are not easily digested?